1204042100 has 18 divisors (see below), whose sum is σ = 2612771574. Its totient is φ = 481616800.

The previous prime is 1204042061. The next prime is 1204042159. The reversal of 1204042100 is 12404021.

It can be written as a sum of positive squares in 3 ways, for example, as 12687844 + 1191354256 = 3562^2 + 34516^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6020111 + ... + 6020310.

Almost surely, 2^1204042100 is an apocalyptic number.

1204042100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1204042100 is an abundant number, since it is smaller than the sum of its proper divisors (1408729474).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1204042100 is a wasteful number, since it uses less digits than its factorization.

1204042100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12040435 (or 12040428 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 1204042100 is about 34699.3097914065. The cubic root of 1204042100 is about 1063.8503909437.

Adding to 1204042100 its reverse (12404021), we get a palindrome (1216446121).

The spelling of 1204042100 in words is "one billion, two hundred four million, forty-two thousand, one hundred".